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Updated: Aug 29, 2025
Culture and Imaging of Ex Vivo Organotypic Pseudomyxoma Peritonei Tumor Slices from Resected Human Tumor Specimens
Published on: December 9, 2022
[Current treatment recommendations for pseudomyxoma peritonei]
H Leebmann1, P Piso2
1Krankenhaus Barmherzige Brüder Regensburg, Prüfeninger Str. 86, 93049, Regensburg, Deutschland. hubert.leebmann@barmherzige-regensburg.de.
Background:
The term pseudomyxoma peritonei (PMP) describes a clinical syndrome characterized by the presence of gelatinous intraperitoneal accumulation of mucus. It mostly originates from a mucocele of the vermiform appendix. Affected patients are often asymptomatic for a long time. Because of its indolent nature it is usually diagnosed at an advanced stage. Clinical presentation is determined by the dissemination of the tumor.
Method:
A search and analysis of the current literature were carried out.
Results:
Based on the morphological characteristics PMP subtypes with various malignant potential can be differentiated. The prognosis depends on the histopathological differentiation and the clinical stage. The treatment spectrum varies from laparoscopic appendectomy to complete cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC).
Conclusion:
Due to the rarity of PMP there are no prospective randomized studies. Therefore, there is still controversy regarding the best stage-dependent treatment strategy. This review article attempts to clarify the optimal management of mucinous neoplasms of the appendix and PMP taking the clinical presentation and the histological differentiation into consideration.
Insights
Pseudomyxoma peritonei (PMP) is a rare condition of mucinous ascites, often originating from the appendix. Optimal treatment for PMP depends on tumor subtype and stage, ranging from appendectomy to cytoreductive surgery with HIPEC.
Area of Science:
- Gastroenterology and Surgical Oncology
- Oncology and Pathology
Context:
- Pseudomyxoma peritonei (PMP) is a rare clinical syndrome characterized by gelatinous intraperitoneal mucus accumulation, typically originating from appendiceal mucinous neoplasms.
- PMP often presents asymptomatically and is diagnosed at advanced stages due to its indolent nature.
Purpose:
- To review and clarify the optimal management strategies for mucinous neoplasms of the appendix and PMP.
- To consider clinical presentation and histological differentiation in determining stage-dependent treatment.
Summary:
- PMP subtypes exhibit variable malignant potential, with prognosis linked to histopathological differentiation and clinical stage.
- Treatment options range from laparoscopic appendectomy to cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC).
Impact:
- Highlights the lack of prospective randomized studies for PMP due to its rarity.
- Aims to guide clinical decision-making in the management of appendiceal mucinous neoplasms and PMP.
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